On Thu, Oct 7, 2021 at 09:26:26AM -0700, Andres Freund wrote:
> Hi,
>
> On October 7, 2021 8:54:54 AM PDT, Bruce Momjian <bruce@momjian.us> wrote:
>
> >Uh, technically most drives use 512-byte sectors, but I don't know if
> >there is any guarantee that 512-byte sectors will not be torn --- I have
> >a feeling there isn't. I think we get away with the hint bit case
> >because you can't tear a single bit. ;-)
>
> We rely on it today, e.g. for the control file.
OK, good to know, and we can be sure the 16-byte blocks will terminate
on 512-byte boundaries.
--
Bruce Momjian <bruce@momjian.us> https://momjian.us
EDB https://enterprisedb.com
If only the physical world exists, free will is an illusion.